Question

A ball is thrown vertically upwards with a velocity of 9.8 m/s. Find its velocity after 1 second. [ Take g = 9.8 ms-2]

Answer 1

Answer:

2 second

Explanation:

Given,

Take initial velocity u=9.81m/s

Acceleration is downward a=−g=−9.81m/s

2

When the body come to the ground, it has equal velocity in magnitude but opposite in direction.

Final velocity v=−u

PLEASE MARK BRANLIEST

Apply kinematic equation

v=u+at

−u=u−gt

t=

g

2u

=

9.81

2×9.81

=2sec